[SGVLUG] DDNS options -- was Re: Cron question

[Claude Felizardo via SGVLUG]

Since many routers have a way to make use of a DDNS service to record 
changes to an IP, does anyone know of a service that will simply send an 
email message when the router gets a new IP?

I have a friend who has a couple of home security web cameras and 
occasionally needs to log in remotely to check.  I had suggested a DDNS 
service but he thought that was overkill when he thought a short email 
would be fine.  He's running a commercial off the shelf box and I doubt 
he would be comfortable changing the firmware.

Claude



Rami Al-Ghanmi via SGVLUG wrote:
>
> I used to use Namecheap, but found that DNS propagation for DDNS was
> not fast enough for me and did not support TLS when I was using it. I
> found a very elegant solution in DuckDNS <https://www.duckdns.org/>.
> Think of it as the DuckDuckGo of DNS.
>
> One of the coolest things about it is that it gives you instructions
> on how to run it on almost everything including Android, pfSense and
> OpenWRT: https://www.duckdns.org/install.jsp.
>
> I highly recommend it.
>
> Rami
>
> On Tue, May 16, 2017 at 1:12 PM, Bryan Pesterfield via SGVLUG
> <sgvlug at sgvlug.net <mailto:sgvlug at sgvlug.net>> wrote:
>
>     My goal also involves setting up the same notice on my mothers pc
>     for remote administration.
>
>     My IP has actually only changed every few years, whenever I change
>     ISPs (so basically never without my own doing), but I am not so
>     sure about my mothers, since it is usually off and in need of a
>     router. I assume her IP changed within a week of installing
>     Ubuntu, because I haven't been back in since then. I am making a
>     trip to load the script there this weekend.
>
>     I have a couple domains with namecheap, but I never bothered
>     looking at their perks. I was looking for a diy solution since I
>     remembered reading that the free services all started charging.
>
>     Thank you guys for the advice. I will set up an account for the
>     script and look into making my router do the work with namecheap.
>     It is a Cisco RV130; I wanted my WAP to be seperate and a new
>     router without it is getting harder to find.
>
>
>     On May 16, 2017 12:01 PM, "Jess Bermudes via SGVLUG"
> <sgvlug at sgvlug.net <mailto:sgvlug at sgvlug.net>> wrote:
>
>         Namecheap and probably other domain registrars provide ddns
>         for you with your purchase, so then if you have a router with
>         openwrt or something you can set it up pretty easily
>
>         On May 16, 2017 14:39, "Michael Proctor-Smith via SGVLUG"
> <sgvlug at sgvlug.net <mailto:sgvlug at sgvlug.net>> wrote:
>
>             If you don't want to do it as root, or your normal account
>             do it. Then create a new user to do it, don't reuse an
>             existing system account. With cron jobs the place you
>             normal fail is that from cron you don't have normal user
>             path stuff added as it is not a login shell.
>
>             But in seem like you are solving a solved problem that we
>             have all gone the road of. That being wanting to access
>             your network remotely and having a dynamic ip address. So
>             if I may suggest looking into one of the free dynamic dns
>             services (DDNS) and save yourself the trouble of having to
>             check email to find your home ip address. Many home
>             routers will automatically update DDNS when there ip
>             address changes.
>
>             On Tue, May 16, 2017 at 11:20 AM, Bryan Pesterfield via
>             SGVLUG <sgvlug at sgvlug.net <mailto:sgvlug at sgvlug.net>> wrote:
>
>                 Hello all,
>
>                 I have a script I wrote to monitor my external ip and
>                 send me an update via email when it changes (it checks
>                 ipv4.icanhazip.com <http://ipv4.icanhazip.com>, so no
>                 parsing necessary). While the books and webpages I
>                 have looked at so far make it appear easy to set up a
>                 cron job, I am unsure of what user should be used to
>                 run the job (since nothing I looked at specified what
>                 accounts should be used, they appear to be indifferent
>                 to it).
>
>                 It didn't seem very secure to have root or myself (aka
>                 a regular user) run the job, so I am hesitating on
>                 setting it up until I know what account should be used
>                 to run it. Do I have a system account do it, or do I
>                 set up an unique account just for it? What's the best
>                 way to do this?
>
>                 Thanks in advance,
>                 Bryan Pesterfield
>
>
>


> Rami Al-Ghanmi via SGVLUG <mailto:sgvlug at sgvlug.net>
> May 23, 2017 at 9:11 AM
> I used to use Namecheap, but found that DNS propagation for DDNS was 
> not fast enough for me and did not support TLS when I was using it. I 
> found a very elegant solution in DuckDNS <https://www.duckdns.org/>. 
> Think of it as the DuckDuckGo of DNS.
>
> One of the coolest things about it is that it gives you instructions 
> on how to run it on almost everything including Android, pfSense and 
> OpenWRT: https://www.duckdns.org/install.jsp.
>
> I highly recommend it.
>
> Rami
>
>

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